Re: Use a Variable in a Separate Perl Script

There are a variety of ways, depending on your goal. Here's one way (minus error checking and meta-character escaping):

$ cat script1.pl
#!/usr/bin/perl
# script1.pl

my $name = '123abc';
my $results = `./script2.pl "$name"`;
# $results now contains the output of script2.pl



$ cat script2.pl
#!/usr/bin/perl
# script2.pl

# run locate on the first argument given to this script
print `locate "$ARGV[0]"`;
[download]

Aaron B.
Available for small or large Perl jobs; see my home node.

Comment on Re: Use a Variable in a Separate Perl Script Download Code

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Re^2: Use a Variable in a Separate Perl Script by NinjaOne (Initiate) on Jun 07, 2012 at 20:11 UTC
Sorry all, thanks for the help thus far, but let me be more specific. Perl Script #1 has a variable, let's call it $final. $final is defined by user input, so it is always dynamic. I would like to use the input from $final in Perl Script #1 and use it to pass that input into Perl Script #2. Thanks.	[reply]
Re^3: Use a Variable in a Separate Perl Script by aaron_baugher (Curate) on Jun 07, 2012 at 22:10 UTC
My example does that, except that my variable is named `$name` instead of `$final`. I assigned a static string to mine, but you could get a value into `$name` using any dynamic method you like, and then pass it to a subprocess (written in Perl or any other language) on the command line using backticks as I did. Aaron B. Available for small or large Perl jobs; see my home node.	[reply] [d/l] [select]
Re^3: Use a Variable in a Separate Perl Script by rovf (Priest) on Jun 08, 2012 at 09:37 UTC
$final is defined by user input, so it is always dynamic. Well, variables are always dynamic, that's why they are called variables. Some of the confusion in the replies to your question seem to be caused by the term "script", which you are using. My understanding is, that script1 and script2 MUST be separate process, in the sense of independent commands, and you need to pass information from one script to the other. Is this correct? Some replies to your question imply that there is a closer coupling of the script possible (so that you can run the whole code within a single process). Both approaches make sense, but maybe you should explain more in detail what your requirements are. Only then can we propose a better solution. Also it helps if you explain, what kind of value $final is supposed to have. Proposed solutions might be slightly different, dependent on whether this value, for instance, is supposed to be a one-digit number, or the content of a whole Word document... -- Ronald Fischer <ynnor@mm.st>	[reply] [d/l]
Re^4: Use a Variable in a Separate Perl Script by NinjaOne (Initiate) on Jun 08, 2012 at 12:22 UTC
Good point. You are correct, Script1 and Script2 are separate processes. At the completion of Script1, I have a mini Bash script (cd <into directory>, ./script2.pl) which executes Perl Script2. I need Script2 to recognize the $final variable defined from Script1. Is this possible? $final will be given a name, such as "Basketball". So I need Script1 to attain the variable (from user input). Then once Script2 is executed, which is completely separate from Script1, it will be able to use the given variable of "Basketball" and continue with the actions of Script2.	[reply]
Re^5: Use a Variable in a Separate Perl Script by rovf (Priest) on Jun 08, 2012 at 13:55 UTC
Re^6: Use a Variable in a Separate Perl Script by NinjaOne (Initiate) on Jun 08, 2012 at 16:40 UTC
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Re^5: Use a Variable in a Separate Perl Script by aaron_baugher (Curate) on Jun 08, 2012 at 14:14 UTC